U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications

NOAA-NMFS-NWFSC TM-33: Sockeye Salmon Status Review (cont)

Appendix Table E-1.
Summary of recent status information for U. S. west coast sockeye salmon stocks. Blanks indicate insufficient data. Asterisk (*) indicates that slope is significantly (P<0.05) different from zero.


Status summaries1
Historical abundance

Recent abundance


River/Stock

Nursery Lake


A


B


Years


Value


Data Type


Source2

Data Years

Data Type3

Run Size4

Escape
ment4

1986-95 Trend5
Full Data Trend5

Puget Sound Area
BakerBakerA NAC1898-1901 20,000Average Escapement a1926-95 LC 2,700 +31.6* -1.5*
19165,000 Escapement a
192415,000 Escapement a
Cedar RiverWashington XWD 1967-95 LC119,000 67,500 -18.2* -3.6*
L. Washington beachesWashington UWD 1982-95ET 1,400 -9.6 -12.5*
L. Washington Sammamish Tribs.Washington/ Sammamish UWD 1982-95ST 15,800 -4.6 -7.2
Big Bear

Creek

Washington/ Sammamish --- 1982-95ST 11,400 -4.1 -7.0
Sherwood Cr. MasonX
Washington Coast
Elwha SutherlandX
OzetteOzetteB NWD1926 few 1,000Run a1977-96 LC 700 -9.9 -1.5
1948-523,000 to 18,000 Catchb
Quillayute (Sol Duc)Pleasant NWU 1987-96 -12.0 -4.9

Appendix Table E-1. Continued.


Status summaries1
Historical abundance

Recent abundance


River/Stock

Nursery Lake


A


B


Years


Value


Data Type


Source2

Data Years

Data Type3

Run Size4

Escape
ment4

1986-95 Trend5
Full Data Trend5

QuinaultQuinault NWH1921-25 20,000 to 250,000Escapement a1967-95 HA39,000 32,000 -3.4 +1.0
early 1900s50,000 to 500,000 Runa
Columbia River Basin
DeschutesA 1957-95 LC9 -11.9 -3.2
Metolius SuttleX
YakimaBumping X
Cle ElumX
KachessX
KeechelusX
WenatcheeWenatcheeC MWH 1961-96ET 19,000 -9.8 -0.1
OkanoganOsoyoos CNWH 1977-93ST 23,000 -1.5 +1.5
1960-96LC 11,100 -19.9* -2.7*
Skaha X
Okanagan X
Upper Columbia
Upper Arrow X
Lower Arrow X
Whatshan X
Slocan X

Appendix Table E-1. Continued.


Status summaries1
Historical abundance

Recent abundance


River/Stock

Nursery Lake


A


B


Years


Value

Data Type


Source2

Data Years

Data Type3

Run Size4

Escape-
ment4

1986-95 Trend5
Full Data Trend5

Snake River Basin
Snake R. (at uppermost passable dam) 1970-95 LC6 -13.2 -21.0*
SalmonRedfish A+ 1954-95 LC<1
Alturas X
Pettit X
Stanley X
Yellowbelly X
Wallowa Wallowa X
Payette various X

1Status summaries from the following sources:

A--Nehlsen et al. (1991): X, extinct; A+, possibly extinct; A, high extinction risk; B, moderate extinction risk; C, special concern.

B--WDFW et al. (1993): Three characters represent stock origin, production type, and status, in that order. Origin: N, native; M, mixed;

X, non-native; U, unknown; -, unresolved by state and tribes. Production: W, wild; C, composite; A, cultured; U, unknown; -, unresolved. Status: H, healthy; D, depressed; C, critical; U, unknown.

2References for historical estimates: a) Rounsefell and Kelez (1938), b) WDF (1974).

3Data types: ET--estimate of total spawners, method unknown; LC--ladder or weir count; ST--stream survey count (total spawners), HA--hydroaccoustic assessment.

4Recent run-size and escapement are geometric means (zeros recoded to 0.1) for the most recent 5 years of data.

5Trends are average percent annual change estimated from log-linear regression.



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